mad scientist, it might be up by the headlight on the one you are working on. on this one it is back by the firewall. it has heater hoses going through the bottom. there is a plug with a whole bunch of hoses and a plug with a bunch of wires on it. i have a picture of it if you want . i havent figured out how to post it here.it is quite large like 4x5 inches and black plastic cover on top. 4 screws hold the cover on .the screw holes are sealed with black rtv.i will probly have it on by thursday .i will sure let you know how it went.....digger